Oleksandr

Developing and integrating Apple Pay and Google Pay payment systems, including configuration, testing, and deployment across multiple environments. Implemented new product features, performed bug fixing, and worked on proof-of-concept (POC) tasks to validate new technical solutions. Conducted code reviews to ensure code quality and maintain the best development practices. Collaborated closely with designers and backend engineers to enhance user experience, optimize performance, and ensure smooth integration of payment workflows.

Developed two MVP versions of the application from scratch, focusing on rapid delivery and scalability for future growth. Integrated PayPal as a primary payment solution, handling both client-side and server-side configurations. Implemented new features and improvements based on user feedback and business requirements. Collaborated with cross-functional teams to refine product vision, ensure smooth API communication, and maintain a high-quality codebase through code reviews and performance optimizations.

Integrated CRM tools to optimize business operations and improve user management. Designed scalable architecture and implemented system logic from scratch. Developed new user flows and features, ensuring seamless functionality and high performance. Served as the sole developer responsible for end-to-end development, from planning to delivery. Managed app publication and updates on the App Store. Designed and implemented technical solutions aligned with project requirements. Actively contributed to decision-making processes, proposed improvements, and led technical discussions. Wrote and maintained automated tests to ensure feature stability and prevent regressions.